The first book by George Lincoln Rockwell, released in 1961.
Note on the audio: While text-to-speech is a less favorable option than human reading, you may, like myself, find this pace and voice relatively comfortable to listen to. The program used was a browser extension called Talking Web. The writing had to be manually scanned for possible reading issues before each chapter was recorded into Audacity, and while the end result isn't perfect, it does the job well.